Home / 80,156.12-120,250.58-27,558.77

Finding the Fourth Proportional to 80,156.12, 120,250.58 and 27,558.77

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Solution

The fourth proportional to 80,156.12, 120,250.58 and 27,558.77 is: 41,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,156.12 : 120,250.58 = 27,558.77 : x
  2. Step 2: Convert to fraction form
    80,156.12/120,250.58 = 27,558.77/x
  3. Step 3: Cross multiply
    80,156.12x = 120,250.58 × 27,558.77
  4. Step 4: Simplify right side
    80,156.12x = 3,313,957,337.54
  5. Step 5: Solve for x
    x = 3,313,957,337.54/80,156.12
  6. Step 6: Final answer
    x = 41,343.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.